Well the power supply did need its own cooling too since it was 115,000 watts. Here's a cutaway http://upload.wikimedia.org/wikipedia/commons/6/6e/Cray_1_IMG_9

Well the power supply did need its own cooling too since it was 115,000 watts. Here's a cutaway http://upload.wikimedia.org/wikipedia/commons/6/6e/Cray_1_IMG_9126.jpg http://upload.wikimedia.org/wikipedia/commons/6/6e/Cray_1_IM... Think about the fact not only an iphone has more computing power but 115 kilowatts vs 5 watts.